Impact driver



FIG. 1 is a perspective view of the top, front and left side of an impact driver showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view of the top, rear, and right side thereof with the hook disposed on the rear and pivoted upwardly. 

The ornamental design for an impact driver, as shown and described. 